Miners pick



(No Model.)

P. W. REARDON.

MINER'S PIOK.

Patented Oct. 18,1881.

UNITE STATES PATENT QFFICE@ PATRICK W. REARDON, OF SAN J OSE, CALIFORNIA.

MINERS PICK.

SPECIFICATION forming part of Letters Patent No. 248,502, dated October 18, 1881.

Application filed August 5, 1881. (No model.)

To all whom it may concern.-

Be it known that I, PATRICK W. REARDON, of San Jose, county of Santa Clara, State of California, have invented an Improved Miners Pick; and I hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to the class of picks, and more especially to those which are known as mining and grading picks.

The principle of the invention is in the provision of a means for adjusting a point to the head or stock; and the novelty consists in the peculiar construction by which this is accomplished.

The object of my invention is to provide a pick the points of which can beremoved when worn or injured with readiness and others substituted.

Referring to the accompanying drawings, Figure 1 shows an elevation of mypick. Fig. 2 shows a vertical section of the stock. Fig. 3 shows an elevation of the pick-point.

Let A represent a handle, and B the stock, in the center of which is an eye to receive the handle A, as shown. The shape. of the stock B is such as to leave shoulders (marked a) upon its outer side. In its ends are sockets, (marked 0,) beveled as shown. From the bottom of the sockets extend inclined tapering holes b, which open out at the shoulders a.

Let 0 represent the pick-point, having an ordinary curved point or blade. Its rear end is cut away to form the beveled projection e, from which extends a tapering shank or stem, m. The end of this shank is provided with screw-threads, and is adapted to receive a nut. When the point is fitted to the stock the shank m extends through the hole I) and projects on the outer side at the shoulder a. The beveled projection e fits within the beveled socket c, and the shoulder of the point which is formed by the projection c fits against the end of the stock. When the point is well in place anut, D, is screwed onto the end of the shank m, and when set up tight against the shoulder a holds the pick-point firmly and rigidly in the stock. Great strength and security are given to this fastening by the shoulder on the pickpoint and the beveled projection. When a blow is struck the point has a tendency to be driven in farther and held more securely. The loosely-taperin g stem or shank m is also tightened by drawing, and holds the pointin place, and the nut can tighten it to the extentofthe strength of the screw-threads. The device is simple and can be used readily. The removal of the nut allows the point to be taken out with ease, and it can be inserted again with facility.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The head or stock B, having a central eye to receive a handle, and provided with shoulders a and beveled end sockets, 0, with tapering holes I), in combination with the pickpoint 0, having a beveled projection, e, and tapering shank or stem m, the end of which is adapted to receive a nut, substantially as herein described.

In witness whereof I have hereunto set my hand.

PATRICK W. REARDON. Witnesses:

J osEPn O. STRATTON, OHAs. E. MOODY. 

